Interesting networking talk

Justin Findlay jfindlay at
Fri Feb 10 11:35:16 MST 2006

On 2/10/06, Bryan Sant <bryan.sant at> wrote:
> You still have to talk to hardware though.  Eventually you have to
> talk to the ethernet controller.  If my user space program uses it's
> own TCP/IP stack, but that stack has to talk to the ethernet
> controller, aren't I making the same number of system calls (or more)?
>  Also, I'm possiblity bypassing any kernel based security (my
> userspace stack would have to know that you can't listen on ports
> <1024 if you're not root, etc).

Exactly why microkernels are better. (-:


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